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(No'ModeL) 2 SheetsSheet 1. J. KURTEN.

PAPER FOLDING MACHINE.

No. 326,910. Patented Sept.,22, 1885.

446599 ITHV'QJJ'ZQZT/ s 4 (No Model.) I 2 SheetsSheet 2.

J. KURTEN.

PAPER FOLDING MACHINE.

No. 326,910. Patented Sept. 22,1885.

4o jointed connection.

NiTE STATES PATE T OFFICE.

JOSEPH KUBTEN, OF ST. LOUIS, MISSOURI.

-PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 32 dated septemberzz. 1885- Application filed September 15, 1884.

To all whom it may concern..-

Be it known that I, JOSEPH KURTEN, ofthe city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Paper-Folding Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This is a device for allowing the papers to drop from the feed or cutting cylinders in case a previous paper becomes lodged or clogged in the machinery.

Figure l is a longitudinal section of a folding-machine, showing the parts necessary to illustrate my invention. Fig. 2is an enlarged detail section on same plane, showing parts in working condition, while in Fig. 3 th y are shown in open condition to allow the escape of the papers, as indicated by arrows. Fig. 4 is an end View of the cylinder around whose under side the paper is carried.

A and B are two cylinders, between which the paper is carried and receives its first fold.

The cylinder A carries the serrated knives O,

by which the sheets are cut off. The cylinder B carries the pins D,by which the leading edge of the paper is engaged and the paper draw 11 forward. This cylinder B also carries the folding-blades E,by which the paper ist'orced down between the folding-rollers H H. The pins Dwork in holes in the sides of the cylinder, and are jointed at the inner ends to arms F upon a rock-shaft, F, extending endwise in the cylinder, and having at one end a cross arm, F one end of which has a stud with friction-roller F which travels on a cam during part of the revolution of the cylinder for the retraction of the pins. To the other arm, F, of the cross-pin a rod, G, is attached by (See Fig. 4.) This rod G works endwise in a lug, G, and upon it is a spiral spring, G", bearing against the lug and a shoulder of the rod and tendingto press the pins D outward.

None of the above-described constructionis novel, and hence does not require to be further shown or described.

H and H are the iolding-rollers, between which the sheet passes and by which it is drawn from the cylinder B, the sheet being forced down between the rollers by the feeding-blade E, as usual. The shaft of roller H turns in No model.)

stationary bearings, while the shaft of roller H has bearing in a'slide-piece, I, having hearing in a socket-piece, K. The piece I has a part of reduced diameter, surrounded by a spiral spring, J,whose ends bear,respectively, against the socket K and piece I and tend to forcibly push the roller H toward roller H. The piece I extends beyond the socket and impinges against the lower arm, L, ofalever, L, when the roller H is forced more than a given distance from the roller H, which movement takes place when more than a certain quantity of paper passes between the rollers. The pressure of the piece I against the lever Learries it to the position shown in Fig. 3 and draws its toe L" from beneath the collar M upon a rod, M. This allows the rod to descend. (See 3.) The rod is forced downward by a spiral spring, N, which surrounds it, the lower end of the spring bearing upon the collar M, and its upper end against one of the lugs O in which the rod works. The upper end of the rod has a pin, M engaging in the slot of arm P of a bell-crank, P, whose other arm, P is connected by a rod, Q, to the free end of a cam or cam-lever, R, whose lower end is fulcrumed to the frame at S.

When the cam lever R is in the position shown in Figs. 3 and 4, the arm F comes in contact with it and prevents the pins D from being advanced to engage the paper, and consequently the paper is not carried around with cylinder B, and the sheets drop vertically as soon as cut off. The papers continue to be discharged in this manner until the cam-lever R is again drawn into the position shown in Figs. 1 and 2, in which position it is retained by the toe L of the lever acting as a support to the rod M.

When the leading folded edge of the sheet leaves the rollers H H,it passes between guides T T, the guides T being fixed, but the guides T being on a shaft, U, extending across the machine, the construction being such that when an abnormal thickness of paper enters between the guides they swing down into position shown in Fig. 3, so as to allow the escape of the paper from the guides T and T. V is an arm extending from the shaft U, said arm having a pin, V, projecting from its side. The position of the arm and pin is such that when the guides T swing down into the position shown in Fig. 3 the pin V impinges against the lower arm of a lever, W, and carries the upper arm, W, of this lever against the lower arm, L, of the lever L, and carries the toe L from beneath the collar M, so as to allow the rod M to drop and the cam-lever R to be drawn into the position shown in Fig. 3,and the sheets to drop from the cylinders, as before explained.

To hold the guides T in their elevated position, as shown in Figs. 1 and 2, aspring, V, is secured to the arm V, said spring engaging, when the guides T are elevated, a stud or projection, 'X, upon the frame of the machine. The arrangement is such that when an undue amount of paper enters between the guides the spring is disengaged from the stud.

From the guides T T the papers are carried by tapes Y to the switch Z, as usual, the switch acting in the ordinary way to direct some papers downward to a lower delivery, and other papers upward to a more elevated place of discharge. There is no novelty claimed in this device. It is mentioned because at this point papers are apt to lodge when not in exact time with the switch,and consequently my improvement is made to extend to this point.

a is a'bell-crank lever upon one end of ashaft, 12, extending across the machine, and carrying at the other end an arm similar to the arm a of the bell-crank. These arms carry a roller, 0, extending across the machine in close proximity to the tape-rollers d and 6, between which the switch Z works. The lower arm, a of the bell-crank lever has a pin engaging in the slot f ofa rod, f, whose other end is connected to the lower arm of the lever L. The arrangement is such that any lodgment of paper at this point will raise the roller c'and trip the lever L from beneath the collar M, with the result before described.

The hammer of an alarm-bell may be conso that when the rod M descends the hammer.

shall strike the bell.

The improvement is equally applicable to the folding-machines having grippers in place of the pins D, the cam R in such case keeping the grippers up so that they will not take the paper.

I claim 1. The combination, in a paper-folding machine, of two rollers between which the paper passes, one of such rollers being movable to and from the other, a paper-carrying cylinder having retractile pins for the engagement of the paper, a movable cam constructed to hold the pins in their retracted position in one position of the cam, and mechanism, substantially as described, connecting the movable roller with the cam, for the purpose set forth.

2. The combination, in a paper-folding machine, of two rollers between which the paper passes, one of such rollers being supported in movable journal-bearings, a spring connected with each said journal-bearings forcing the movable roller toward the other one, a lever moved by the outward movement of one of said journal-bearings to remove its toe from beneath the collar of a spring-rod, a papercarrying cylinder having retractile pins to engage the paper, a movable cam which in one position holds the pins in their retracted position during a portion of the rotation of the cylinder, and a lever and rod connecting said spring-rod to the cam, for the purpose set forth.

3. The combination, in a paper-folding ma chine, of fixed and drop guides between which the paper passes, a paper-carrying cylinder having retractile pins for the engagement of the paper, a movablecam constructed to hold the pins in their retracted position in one position of the cam, and mechanism, substanstantially as described, connecting the falling or drop guides with the movable cam, for the purpose set forth.

4.. The combination, in a paper-folding inachine, of falling or drop paper guides upon a shaft having an arm impinging against a lever as the guides descend, a trip-lever actuated by said lever to trip a spring-rod and allow its movement, a lever and rod connecting the spring-rod to the movable cam, and the said cam acting upon the pins of a paper-carrying cylinder to hold the same in their disengaging position during a part of the revolution of the cylinder, for the purpose set forth.

5. The combination, in a paper-folding machine, ofa roller moved by the clogging of paper, and mechanism, substantially as described, connecting said roller with a movable cam acting to hold paper-pins of a papercarrying cylinder in disengaging position, and an alarm connected to the mechanism, for the purpose set forth.

6. The combination; in a paper-folding machine, ofa roller moved bodily by the clogging of the paper against it, a rod connecting the movable bearing of said rod with a triplever sustaining a spring-rod, a paper-carrying cylinder having paper-engaging pins and a movable cam constructed to hold the pins or grippers in their disengaging position and connected to the spring-rod, substantially as and for the purpose set forth.

7. The combination, in a paper-folding machine, of two rollers between which the paper is passed,a paper-feeding device, substantially as described, a stationary bearing for one of said rollers, a sliding,bearing for the other roller, and devices, substantially as described, operated by the sliding bearing to arrest the action of said feeding-rollers.

JOSEPH KURTEN. 

